:yes:
The funny thing is that they all share the same choreographer, either David Wilson or Lori Nichol. It makes me wonder if they're getting empty programs because their skating is not on par to be able handle the transitions. Transitions into and out of jumps is a tough thing to do. Joannie Rochette admitted to struggling with her Aranjuez when she first got the program because of all the transitions and was only able to land two triples in her practices. She was going to dump the program but decided against it. Lori's best programs in 6.0 and CoP were for Michelle and Joannie. Both ladies have good skating skills. Mao had good programs from Lori too.
DarkestMoon, I did read about how Joannie Rochette first struggled when her program got loaded with transitions. I also think you are right that the American girls are just not confident enough that they could actually execute all the additional content.
However, I think in the long term, the American girls would be able to accommodate lots of new transitions, if they invested as much effort into them as they did into practicing their triples.
The problem is that during all these years, the American girls had the wrong strategy. In their junior days, I remember Caroline, Mirai, and Ashley focusing a lot on their jumps (and spins), but not as much on transitions. Wasted time. Better to leave out the triple-triples but to maximize the transitions.
The problem is that adding lots of transitions would initially cause the skater to drop in standings because she would struggle. The price is high to pay. (See what happened to Mao. It could happen to others as well.)
I will however say that Ashley and her coach are on the right track because Ashely has been working with Priscilla to improve her skating in general and hasn't focused only on the jumps.